Wheat Flour Blends Research Articles

Effect of superfine grinding chestnut powder on the structural and physicochemical properties of wheat dough

This study evaluated the influence of chestnut powder, produced using ball mill superfine grinding (BMSG), jet superfine grinding (JSG), and ordinary grinding (OG), on wheat flour properties. Blending wheat flour with chestnut powder resulted in a darker flour blend (3 % decline of L*), with decreased the tap density and increased water holding capacity. Adding appropriate proportion of superfine chestnut powder can bolster the mixed flour's thermal stability (15 % BMSG/JSG) and freeze–thaw stability (10 % BMSG/JSG), while significantly enhancing the anti-aging properties of flour products. The proposition of 5 % superfine BMSG/JSG did not significantly affect the tensile resistance of the dough, and even improve the dough's tensile strength. In addition, the hardness, adhesiveness, springiness and pH of fermentation increased due to the addition of chestnut powder, as supported by the dough texture analyses and fermentation characteristics findings. However, the excessive addition of chestnut powder affected the dough network's structural integrity to some extent. Further study can focus on the influencing mechanism of chestnut powder on gluten formation and related nutritional properties. Overall, this research underscores the potential of utilizing chestnut powder to enhance the nutritional and functional qualities of wheat-based products.

Front-face fluorescence spectroscopy combined with chemometrics for the discrimination of wheat flour and cassava flour

Fluorescence and chemometric methods were used in this study to discriminate wheat flour samples mixed with cassava flour at different percentages (from 0 to 60). The fluorescence emission spectra of the different flours were obtained at excitation wavelengths of 349 nm and 373 nm. Principal component analysis (PCA) and Cluster Analysis (CA) showed that pure wheat flour can be distinguished from mixed wheat flour. The overall predictive accuracy of the principal component analysis and discriminant analysis (PCA-DA) and partial least squares discriminant analysis (PLS-DA) of the two-class discriminant models (pure and mixed wheat) reached 100%, showing that the model was able to correctly differentiate a pure wheat sample from a mixed wheat sample. The predictions of the three-class models (pure wheat, 10%,20%−60%; pure wheat, 10%+20%, 30%−60% and pure wheat, 10%−30%, 40%−60%) showed an overall accuracy of over 90% for the PCA-DA and PLS-DA models, the latter being the best performing. Thus, the specificity, sensitivity and precision values (>0.8) for the 10%, 10% + 20% and 10%− 30% classes in each PLS-DA model showed the ability of these models to predict the classes of blended wheat flour samples according to their level of mixing by cassava.

Proximate, Physical and Sensory Characteristics of Enriched Cake Produced from Wheat and Tiger Nut Flour Blends

Proximate, Physical and Sensory Characteristics of Enriched Cake Produced from Wheat and Tiger Nut Flour Blends

Proximate, vitamins and sensory analyses of biscuit produced from blends of wheat and potato flour enriched with chia seed (Salvia Hispanica)

Proximate, vitamin and sensory analyses of biscuit produced from blends of wheat and potato flour enriched with Chia seed (Salvia Hispanica) were carried out in this study. Flour blends of wheat and potato were composite at replacement ratios of 50:50 %, 70:30 %, 60:40 % and 100 % wheat which served as the control and the three formulated samples were enriched with 5% Chia seed per sample. The biscuits produced were evaluated for their sensory, proximate and vitamins attributes. The result of sensory evaluation revealed that the biscuit was accepted with a mean score of 6.40% similar to the 100% wheat flour with mean score of 6.80 %. There were significant difference among the samples at (P≤0.05) based on appearance, aroma, taste, crispiness and texture. The results of proximate analysis shows that the protein content of the enriched blends increased with mean score of 7.95 % higher than that of the control (100 %) wheat flour of 7.04%. The 100 % wheat flour (sample D) had high moisture content with sample A, B, and C, having 6.38 %, 7.17 % and 6.77 % respectively. The carbohydrate and energy value of the samples were significantly different at (P<0.05). Sample A had the highest carbohydrate and energy value of 75.68 % and 391 % respectively. The result of the vitamins content shows that the chia seed enriched samples of A, B, and C recorded 1.83 to 1.47 % respectively for Vitamin A and 0.64 to 0.62 % for Vitamin E. Sample D (100 % wheat flour) recorded the highest Vitamin C content of 4.64% higher than the enriched samples. The samples were significantly different at (P<0.05). In conclusion, biscuit of acceptable quality were produced from the formulation of wheat and potato flour enriched with chia seed (Salvia Hispanica).

Quality properties of bread from blends of wheat flour and sweet orange seed protein concentrate

The study investigated the effect of substitution of wheat flour with sweet orange seed protein concentrate on the quality of bread. Protein concentrate, obtained from sweet orange (Citrus sinensis) seeds was used to substitute 5, 10, 15, 20 and 30% of wheat flour in breads. The flours were assessed for functional and pasting properties while the breads were evaluated for proximate composition, physical and sensory properties. Sweet orange seed protein concentrates and wheat flour had bulk densities of 0.45 g/cm3 and 0.72 g/cm3, respectively while those of the flour blends ranged from 0.61 - 0.70 g/cm3. Wheat flour had lower contents of moisture, crude fiber, ash, protein, and fat than the protein concentrate, which had lower carbohydrate content. Sweet orange seed protein concentrate had highest foaming capacity, water and oil absorption capacities but lowest least gelation concentration among all the flours. The peak viscosities of protein concentrate and wheat flour were 886.21 RVU and 675.20 RVU, respectively. The peak, trough, breakdown, final and setback viscosities of the flour blends decreased while peak time and pasting temperature increased with increase in the substitution of wheat flour with protein concentrate. In length, loaf weight, height, oven spring, loaf volume, specific volume and weight loss, the 100% wheat flour breads had 12.03 cm, 172.60 g, 5.35 cm, 0.62 cm, 471.50 cm3, 2.73 cm3/g and 10.42%, respectively while breads containing 5% sweet orange seed protein concentrate had 12.02 cm, 171.40 g, 4.60 cm, 0.61 cm, 350.50 cm3, 2.04 cm3/g and 9.28 %, respectively. The proximate composition of the breads containing 5 and 10% sweet orange seed protein concentrate were improved over that of wheat flour bread. The sensory attributes of the breads decreased with increased level of sweet orange seed protein concentrate in the breads. However, the breads containing 5 and 10% sweet orange seed protein concentrate were not significantly (p>0.05) different from the 100% wheat bread in colour. Thus, the incorporation of up to 10% sweet orange seed protein concentrate in wheat flour improved the functional properties of the flour blends and the qualities of the bread. Adoption of this approach will address malnutrition, wastages and environmental pollution (caused by the discard of orange seeds).

Nutritional Properties of De-fatted Coconut (<em>Cocos nucifera</em> L.) Testa Flour Incorporated Sri Lankan Traditional Food: Roti

Coconut testa (brown outer skin of coconut kernel) is a by-product of coconut industry and it does not have proper usage at present. The aim of this research was to evaluate the potential of coconut testa flour (TF) to substitute for wheat flour in preparation of unleavened bread or roti. TF is the ground defatted dehydrated coconut parings obtained from paring oil extraction. The dehydrated brown testa was subjected to oil extraction using cold press expeller followed by grinding into a fine flour. The quality of raw material (testa and TF) was evaluated. The samples of roti were prepared by incorporating 0%, 10%, 20% and 30% of TF instead of wheat flour and the sensory attributes of the roti were evaluated. Functional and proximate composition of flour blends and selected roti samples were compared with a control (100% wheat flour). Fat and moisture contents of dehydrated parings were 58.06% and 4.04% respectively, and the concentrations were reduced to 16.97% and 2.56% respectively while producing TF. All sensory attributes (taste, texture, appearance, smell, overall acceptability) of the TF incorporated roti were significantly different (P<0.05) compared to the roti made with 100% wheat flour (WF). According to the results, TF can be successfully substituted for wheat flour up to a level of 20% to enhance nutritional qualities of roti. No significant difference of swelling capacity, bulk density, tapped density and water absorption capacity (P>0.05) between the selected flour blend sample (20% TF: 80% WF) and 100% WF sample was observed. However, crude fiber and protein contents of the 20% TF and 80% WF blend were significantly (P<0.05) higher than the WF only samples. The TF incorporation (20%) contributed to increase the crude fiber content of roti from 1.81% to 7.04% and protein content from 12.43% to 16.06%.

Development and Characterization of Biscuit Produce from Wheat, Carrot and Haricot Bean Composite Flour

In Ethiopia consumption of baked foods is greatly increasing. Moreover, products Protein and vitamin deficiency are still a major concern in the country and it cause disease and death in children under the age of 6 years. A blending of 100:0:0; 90:5:5; 80:10:10; 70:15:15; 60:20:20; 50:25:25 and 40:30:30 percent wheat: carrot: haricot bean flours were used to make composite biscuit. The proximate structure, functional properties, and sensory assessment were evaluated using standard methods. The experiment subjected to one-way analysis of variance (ANOVA) using the statistical analysis system (SAS) software package. The results showed that partially replacing wheat with carrot and haricot bean increased the proximate composition of moisture (5.98-10.55%), protein (10.49-16.55%), ash (1.87-3.06%), fiber (1.36-3.22%), and fat (1.15-2.43%) significantly. Whereas carbohydrate (79.15-64.19%) and energy (368.91-344.83 kcal/g) decreased significantly. Sensory acceptability (appearance, Crispiness, color, flavor, taste, and overall acceptability) was higher in the composite biscuits with up to 30% wheat substitution by carrot and haricot bean than 100% wheat flour biscuits. Based on the findings of this report, using carrot and a haricot bean to wheat flour blend in biscuit formulation appears to be promising in terms of nutritional quality, acceptability, and cost. It is proposed that these products be marketed to vitamin A deficiency (VAD) customers and it have a chance to reduce food insecurity.

Quality evaluation of beef patties formulated with wheat and sweet potato flour blends

The use of fat replacers in meat products has been explored due to the demand for nutritious and healthy meat products. The optimal blend of wheat and sweet potato flour as healthy alternatives was investigated. Using standard procedure, samples formulated were analyzed for proximate, color, texture, sensory, and cooking properties. The cooking yield, diameter reduction and cooking loss value ranged between 56.13 -77.27%, 10.35 - 15.03% and 18.01 - 22.72% respectively. A significant difference was observed in all the cooking properties of the beef patties. The color attributes of the beef patties with the inclusion of wheat and sweet potato flour were significantly affected by the incorporation of the flour blends. An increase was observed in protein content as the addition of wheat flour increased while the inclusion of sweet potato flour decreased fat content. The presence of sweet potato flour significantly affected all the textural attributes of the beef patties samples. The optimum ingredient ratio obtained was 24% wheat flour and 76% sweet potato flour. Replacing meat fat with wheat and sweet potato flour blends will produce acceptable beef patties.

Quality evaluation of chin-chin produced from aerial yam (Dioscorea bulbifera) and wheat flour blends

The objective of this study was to investigate the quality of chin-chin produced from aerial yam and wheat flour blends with the aim to improve the utilisation of aerial yam flour and reduce over-dependence on wheat flour. A portion of aerial yam tubers was sun-dried and the other was dried in a dehydrator. They were made into flour and substituted with wheat flour at varying proportions (85:15, 67.5:32.5, and 50:50). 100% wheat flour was used as the control. The flour blends were analyzed for proximate, functional, and phytochemical properties. The chin-chin produced were evaluated for their sensory properties. Wheat-aerial yam flour blends were nutritionally superior (with respect to protein, fat, fibre, and carbohydrates), and had better functional and phytochemical properties when compared to plain wheat flour used as the control. Sensory evaluation revealed that the most appealing sample among the flour blends was W85AYD15 (with 85% wheat flour and 15% dehydrated aerial yam flour) even though samples W50AYS50 (with 50% wheat flour and 50% sun-dried aerial yam flour) and W50AYD50 (with 50% wheat flour and 50% dehydrated aerial yam flour) were more nutritious. Since the findings of this study showed that highly nutritious and functional flours can be produced by including aerial yam flour in flour blends, the industrial production of aerial yam flour will increase its economic value by improving utilisation and providing cheaper alternatives to wheat flour.Graphical

International Science View Journal (Proximate Composition, Amino acid and Sensory profiles of bread made from wheat, monkey kola and differently-processed cowpea)

This work investigated the proximate composition, amino acid (AA) and sensory profiles of bread loaves made from blends of wheat, monkey kola and cowpea flours. Monkey kola pulps were extracted from fruit pods and processed into flour. Cowpea seeds were cleaned and separately processed (sprouted, soaked and blanched), dehulled, oven-dried, dry milled and finely sieved into flour. Composite flour samples were made by partially substituting wheat with inclusion levels of 10% monkey kola flour and 20% processed cowpea flour respectively. The composite flours were mixed with other ingredients and used to produce bread. The bread loaves were subjected to amino acid, proximate and sensory analyses. Proximate analysis revealed thus: Protein (8.66 to 14.74%), fat (19.48 to 20.83%), ash (1.15 to 2.03%), crude fibre (0.79 to 2.31%), moisture (21.39 to 27.05%), and carbohydrate (33.94 to 44.36%). Eighteen (18) amino acids were detected amongst the composite flour bread samples. The nine essential amino acids were present at a range of 30.52g/100g protein to 33.07g/100g protein; the total AAs ranged from 72.34g/100g protein to 77.04g/100g protein. Sprouting increased the values of most of the amino acids. The 70:10:20 wheat-monkey kola-sprouted cowpea bread was most accepted by the sensory panel, whilst also having the highest amounts of protein, ash, crude fibre, moisture and a remarkable AA profile amongst the bread samples. The presence of cowpea in the blend affected consumers’ responses due to the beany flavour. Potentials exist for enhancing bread quality and variety via the inclusion of monkey kola and cowpea flours.

Evaluation, Physicochemical and Sensory Properties of Composite Bread Produced from Wheat, Sweet Potatoes and Cashew Nut Flour

The physicochemical properties of Wheat, sweet potato and cashew nut flour blends were studied. The sweet potatoes were washed; peeled; sliced; dried, and milled to Flour. The cashew nuts were also sorted, cleaned and processed into Flour. The Wheat, sweet potato and cashew nut Flour were proportioned into different samples G1 (100:00:00). Control samples were 100 % wheat flour, G2 (80:10:10), G3 (70:20:10) and G4 (60:30:10) respectively. Bread from these different proportions was formulated. The functional, proximate, physical properties and sensory properties were determined. GENSTAT Statistical Software (version 17.0) was used for data analyses. The Data obtained showed the following ranges for Bulk density (0.83-0.84 g/ml), water absorption capacity (3.65-5.78 g/g), oil absorption capacity (1.73-2.76 g/g), swelling index (7.22-7.94) and pH (5.95-6.00). Proximate compositions of the Bread showed the following ranges for moisture (30.14-34.68 %), protein (7.89-13.03 %), fat (8.82-952 %), fibre (1.23-4.34 %), ash (0.56-2.02 %) and carbohydrates (38.86-51.37 %). The physical properties of the Bread ranged from 210.60-247.50 g, 1.27-2.40 mm, 328.70-440 cm3 and 1.33-2.10 for loaf weight, oven spring, loaf volume and specific volume, respectively. Sensory evaluation findings indicated that up to 30 % substitution of sweet potato flour and 10 % cashew nut flour for wheat flour was acceptable in bread formulation.

Comparative Study on Pasting and Functional Properties of Composite flour Produced from Acha (Digitaria exilis) Starch, Chickpea (Cicer arietinum) and Wheat (Triticum aestivum) Flour Blends

Comparative Study on Pasting and Functional Properties of Composite flour Produced from Acha (Digitaria exilis) Starch, Chickpea (Cicer arietinum) and Wheat (Triticum aestivum) Flour Blends

Quality evaluation of value-added nutritious biscuit with high antidiabetic properties from blends of wheat flour and oyster mushroom

The aim of this study was to produce biscuit from blend of mushroom flour and wheat flour. The composite flour was at 0, 10, 20, 30 and 40% level of mushroom inclusion. The biscuit was analyzed for proximate composition, physical properties, mineral content, antioxidant properties, carbohydrate inhibitory enzyme activities, glycemic index, trend in blood glucose concentration, microbiological and sensory evaluation. Result from the proximate analysis showed that as the proportion of mushroom flour increased in the blend the protein con also increased. The protein content ranged from 10.36 to 17.92% while ash content ranged from 0.63 to 3.31%. Result from the physical properties of the biscuit showed that the spread ratio increased with increase in incorporation of the mushroom flour. The result from the mineral analysis revealed that sodium and calcium content increased with the increase in the level of the mushroom flour. Result from carbohydrate inhibitory enzyme activities showed that the biscuit inhibited key digestive enzymes such as (α- amylase and α- glucosidase). The result of glycemic index showed that the biscuit possessed low glycemic index and glycemic load. The trend in blood glucose concentration of rats fed with the biscuit showed that increasing level of the mushroom flour has a positive effect to lower the postprandial blood glucose response with WFMRB4 being the lowest. The microbial count ranged from 2 × 102 to 5.0 × 102 Cfu/g for bacteria count and 1.0 × 102 to 3.0 × 102 cfu/g for mold count. E coli was not detected in the mushroom biscuit. Sensory evaluation result showed that the biscuits were rated above average. The mushroom biscuit can therefore be used to manage diabetes mellitus and overcome protein-energy deficiency.

Innovative Ingredients Fortified Nutrients Enriched Biscuits and Cookies: Quality and Sensory Analyses

Abstract:Global suffering from COVID-19 has necessitated augmenting the immunity systems of humans through consumption of macro-micro-nutrients and antioxidant-enriched fortified foods. In this article, fortifications of popular bakery products, viz. biscuits, cookies, have been reviewed, encompassing the novel fortifying ingredients and innovative methods employed with an emphasis on the overall enrichment in the final product quality. A few notable features concerning novel fortified biscuit and fortified cookie have been decisively summarized. Wheat flour blended with 40% sesame-cake flour resulted in a fortified biscuit possessing higher protein (16.6%), crude fat (16.95%), and dietary fiber (8.2%) with acceptable sensory characteristics. About 9% toting up of chicken-eggshell dried-powder could result in high Ca content in biscuits with customary changes in texture and sensory properties. A remarkable 5% addition of bee pollen to wheat flour appreciably improved the nutrient compositions (carbohydrate 65.18%, protein 7.32%, and total dietary-fiber 1.47%) along with high polyphenol and antioxidant potentials. Notably, mixing fish fillet protein concentrate with wheat flour could yield enhanced nutritional content (protein 14.63-19.52%, fat 16.2-16.5%), as well as augmented amino acids. Remarkably, wheat flour fortified with fermented jack bean flour resulted in an overall fortified biscuit with substantial carbohydrate, crude protein, fat, fiber, ash, and appreciable macro-micro mineral contents and sensory characteristics. Innovative fortified cookies were made by blending wheat flour or Brewer’s spent grain flour with one or more ingredients, e.g. full fat soya, mushroom, cardamom powder, moringa leaves, coconut, sweet potato flour rendering amplified values of nutrients, superior physical properties, increased mineral and flavonoid contents and organoleptic qualities.

Effect of Type of Flour and Microalgae (Chlorella vulgaris) on the Rheological, Microstructural, Textural, and Sensory Properties of Vegan Muffins

The aim of this study was to develop a recipe for vegan muffins using wheat flour (100%) and a blend of whole-grain spelt flour (50%) and wheat flour (50%) enriched with microalgae (0, 0.5, 1.0, and 1.5% (g/100 g flour)). Replacing wheat flour with whole-grain spelt flour and adding microalgae while eliminating egg white from a recipe can affect the rheological properties of the dough and also the microstructure and texture of the muffins. The study analyzed the effects of the type of flour and the addition of microalgae on the rheological properties of the raw dough, measured through the oscillatory method, as well as the texture and microstructure, determined via X-ray microtomography. Additionally, the sensorial quality of the muffins was analyzed. The use of spelt flour in the formulation of muffins affected the rheological properties of the dough irrespective of the addition of microalgae. The dough made with spelt flour exhibited higher viscosity (consistency coefficient (K) was 74.7 Pa·sn), but it was more cohesive and less springy compared to the dough made with wheat flour alone, which had a K = 58.3 Pa·sn. Incorporating a mixture of spelt and wheat flour along with a 1.5% addition of microalgae made the dough more viscous (K = 118.6 Pa·sn), leading to a fine, porous microstructure (porosity was 69.7%) and a crumbly texture (hardness was 52.2 N) in the muffins. On the other hand, the wheat flour dough with 1.5% microalgae had a consistency coefficient of 69.3 Pa·sn, while the muffin porosity was 67.1% and the hardness 61.8 N. The microstructure had a strong effect on the texture of the muffin crumb. The new wheat flour products with microalgae exhibited a higher proportion of closed pores in their microstructure, whereas samples containing spelt flour and microalgae showed the opposite trend, with more open pores. The greatest difference in closed pores was observed with the addition of 1.5% of microalgae (33.4% in wheat muffins and 26.9% in spelled muffins). The presence of closed porosity contributed to the harder and less consistent texture observed in the muffins. However, despite the instrumental evaluation results, all the new products were accepted by consumers in terms of appearance, taste, and overall quality.

Effect of varietal differences on chemical and pasting properties of composite wheat-cassava flours produced from low postharvest physiologically deteriorated cassava roots (Manihot esculenta Crantz)

This study investigated the effect of varietal differences on the chemical and pasting properties of composite wheat-cassava flours produced with blend of wheat and high-quality cassava flour from low postharvest physiologically deteriorated (PPD) cassava roots. Wholesome four varieties of yellow-fleshed low PPD cassava roots and one variety of high PPD cassava root were, peeled, washed, grated, pressed, pulverized, flash dried at 120 °C for 8 minutes, milled with cyclone hammer mill fitted with a screen of 250 µm aperture size, cooled and packed into high density polyethylene bag. The high-quality cassava flours (HQCF) were composited with wheat flour and analyzed for chemical and pasting properties. Data obtained were subjected to analysis of variance (ANOVA) using Statistical Package for Social Sciences (SPSS version 25.0) and significant means were separated applying Duncan multiple range test and Pearson’s correlation was also determined. The results depict that moisture, protein, fat, ash, sugar, starch, dry matter and energy value ranged from 12.45 - 13.10 %, 10.30 - 11.65 %, 0.40 - 3.71 %, 0.58 - 0.62 %, 1.75± - 2.08 %, 70.94 - 74.40 %, 86.90 - 87.55 % and 1464.29 - 1531.66 KJ/kg, respectively. Peak, trough, breakdown, final, setback, peak time and pasting temperature ranged from 180.63 - 247.21 RVU, 95.84 - 129.00 RVU, 83.42 - 118.21 RVU, 139.29 - 253.71 RVU, 83.79 - 124.71 RVU, 5.90 - 6.17 min and 69.00 - 73.48 °C, respectively. Considering the relatively high dry matter content, energy value, peak viscosity, low breakdown viscosity and pasting time, flour blends C-C1368-W and C-C0593-W prepared with HQCFs from IITA-TMS-IBA-011368 and IITA-TMS-IBA-070593 cassava varieties could find application in baking and confectionery industry.

Optimization Method of Whole Wheat Flour, Soybean Flour, Oyster Meat Powder for Nutrient- Dense Composite Flour

Aim: To study the production of Nutrient – Dense Composite Flour from the blends of whole wheat flour, soybean flour (full fat) and oyster meat powder.
 Study Design: The study was design using the D-optimal combination design of Response Surface Methodology (RSM).
 Place and Duration of Study: The study was carried out at Department of Food, Nutrition and Home Science, University of Port Harcourt (Processing of raw materials) and the Department of Food Technology, Federal Institute of industrial research Oshodi, Lagos (Analysis of raw materials) between October 2021 and August 2022.
 Methodology: The raw materials were each processed to have wholesome flours, and then they were combined according to the matrix generated, which had ranges of 70 – 100%, 0 – 22%, and 0 – 8% for whole wheat flour (WWF), soybean flour (SBF) and oyster meat powder (OMP) respectively.
 Results: The design was used to assess the significance (5% probability) of the moisture, fat, and protein content, which ranged from 8.09 to 11.37%, 1.80 to 8.52% and 9.70 to 19.07% respectively; the water absorption (72.00 - 79.10BU), dough stability (9.3 - 17.5BU) and mixing tolerance index (25 - 50BU); and lightness and yellowness, which ranged from 65.48 - 83.2 and 13.77 - 23.58 respectively, of the flour blends. Protein content, water absorption dough stability, and mixing tolerance index were prioritized while moisture content, fat content, and yellowness were minimized for the numerical optimization of the responses. This study highlights the possibilities of utilizing non-conventional raw materials in the production of composite flour with balance nutritional and baking qualities.
 Conclusion: The best flour combination was 72.51% whole wheat flour, 19.63% soybean flour, and 7.86% oyster meat powder.

Proximate, mineral, sensorial and microbiological properties of chin-chin produced from okra seed and wheat flour blends

This research work focused on investigating the proximate, mineral, sensory and microbiological qualities of chin-chin produced from a blend of wheat and okra seed flours. The okra seed flour was prepared using standard procedures. The wheat flour was blended with the okra seed flour at ratio 100:0 (control), 90:10, 80:20, 70:30, 60:40 and 50:50. Crude protein, crude fibre and total ash increased with increase in proportion of okra seed flour incorporation. However, decreases were observed for moisture, crude fat and carbohydrate respectively. Bacterial and fungal counts were within the acceptable limits and ranged between 4.0 × 103 to 11.0 × 103 cfu/g and 1.0 × 103 to 15.0 × 103 cfu/g respectively. Chin-chin made up of 20% substitution with okra seed flour was the most preferred for the blended products in terms of general acceptability for sensorial attributes. The energy value of the okra seed chin-chin ranged from 364.55 ± 0.12 to 388.73 ± 0.19 kcal/100 g. The study has shown that the employment of okra seed in the production of chin-chin could be a veritable and rich source of nutrients.

Evaluation of proximate composition, physical and sensory properties of soybean supplemented wheat bread

This present study evaluated proximate composition, physical and sensory properties of soybean supplemented wheat bread in order to ascertain its nutritional quality. Standard analytical methods were used for the analyses. The formulation for the composition of soybean supplemented wheat bread were in the ratios of (100: 0:, 90:10, 80:20,70:30,60:40 and 50:50 %) for wheat and soybean flour blends. The result for proximate composition of soy supplemented wheat bread showed that samples with flour blends of 50:50% , 60:40%,and 70:30% had the highest value at (P<0.05) for protein (42.50- 45.50%), fibre (16.50-25.50%) and ash(1.05-1.90) when compared with the control sample(31.50,13.50,and1.25%) respectively . For physical properties the results revealed that the control sample (100% wheat bread) had the highest value for height, loaf volume and specific volume while 50:50% soybean supplemented wheat bread had the highest value for weight. The result for sensory properties evaluated in terms of all parameters assessed showed that soy supplemented wheat bread at 80:20 ranked best when compared with the 100% wheat bread and was generally accepted by the consumers. Thus it can be concluded that the supplementation of wheat flour with soya bean flour improved the nutritional component of the bread as revealed by the result obtained especially in relation to increase in protein, ash, and fibre, content which will boost the protein level of bread, improve mineral, enhance digestion and reduce constipation often associated with bread produced from refined wheat flour.

Sensory and physicochemical properties of biscuit produced from blends of whole wheat, soy okara and tigernut residue flours

Biscuits are popular ready to eat, cheap and convenient food products that are consumed globally. Supplementation of wheat flour with inexpensive staples from other cereals, legumes, roots and tubers will help in improving the nutritional quality of wheat products. Therefore, this study investigated the sensory and physicochemical properties of biscuits produced from blends of whole wheat, soy okara and tigernut residue flours. The sensory qualities of the twelve whole wheat, soy okara and tigernut residue flour biscuits at p < 0.05 ranged from 5.36 to 7.68 (color), 5.60–7.64 (appearance), 4.48–7.96 (mouthfeel), 4.28–7.76 (aroma), 3.96–8.32 (taste), 3.64–8.20 (crunchiness), 3.56–7.56 (crispiness), and 5.08–8.36 (overall acceptability). Physical, proximate and mineral analysis were carried out on the best five biscuit samples containing 100:0:0 (MVP), 60:20.98:19.02 (ISP), 50.75:39.25:10 (JAR), 53.79:22.57:23.64 (GEN) and 56.32:27.39:16.29 (XEC) whole wheat, soy okara and tigernut residue flours respectively. The physical analysis showed that diameter (38.13–38.17 mm), height (37.73–37.76 mm) and thickness (6.10–6.17 mm) were not significantly different, but the weight (7.30–7.73 g), spread ratio (5.73–6.10 mm) and breaking strength (600–643 g) significantly (p < 0.05) differed among the biscuit samples. The proximate composition of the biscuits ranged from; ash (1.70–1.90%), moisture (4.00–5.70%), fiber (7.00–11.30%), fat (16.20–17.30%), protein (6.50–12.00%), carbohydrate (56.94–59.20%) while mineral content ranged from; magnesium (122.00–134.00 mg/100 g), sodium (16.00–28.00 mg/100 g), calcium (12.00–24.00 mg/100 g), iron (2.30–3.50 mg/100 g) and phosphorus (100.00–121.00 mg/100 g). The study showed that substitution of wheat flour with soy okara and tigernut residue flour at a ratio of 60:20.98:19.02 yielded the most acceptable biscuits in all the sensory attributes assessed. This implies that biscuits produced from this composite blend contain sufficient amounts of protein, fat, fiber and carbohydrate. Hence, they can serve as relief for malnutrition.